Crash Course Astronomy - Season 1 Episode 21 Comets
Today on Crash Course Astronomy, Phil explains comets. Comets are chunks of ice and rock that orbit the Sun. When they get near the Sun the ice turns into gas, forming the long tail, and also releases dust that forms a different tail. We’ve visited comets up close and found them to be lumpy, with vents in the surface that release the gas as ice sublimates. Eons ago, comets (and asteroids) may have brought a lot of water to Earth -- as well as the ingredients for life.
Year: 2015
Genre: Documentary
Country:
Studio: YouTube
Director:
Cast: Phil Plait
Crew: Phil Plait (Writer)
First Air Date: Jan 15, 2015
Last Air date: Dec 24, 2015
Season: 1 Season
Episode: 46 Episode
Runtime: 12 minutes
IMDb: 8.00/10 by 1.00 users
Popularity: 4.068
Language: English
Keyword : astronomy
Season
Season 1
Episode
Introduction to Astronomy
Naked Eye Observations
Cycles in the Sky
Moon Phases
Eclipses
Telescopes
The Gravity of the Situation
Tides
Introduction to the Solar System
The Sun
The Earth
The Moon
Mercury
Venus
Mars
Jupiter
Jupiter's Moons
Saturn
Uranus & Neptune
Asteroids
Comets
The Oort Cloud
Meteors
Light
Distances
Stars
Exoplanets
Brown Dwarfs
Low Mass Stars
White Dwarfs & Planetary Nebulae
High Mass Stars
Neutron Stars
Black Holes
Binary and Multiple Stars
Star Clusters
Nebulae
The Milky Way
Galaxies, Part 1
Galaxies, Part 2
Gamma-Ray Bursts
Dark Matter
The Big Bang, Cosmology Part 1
Dark Energy, Cosmology Part 2
A Brief History of the Universe
Deep Time
Everything, The Universe...And Life
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